<!DOCTYPE html>
<html lang="zh-CN">
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width,initial-scale=1">
    <title>Linux 文件权限管理 | 我的笔记</title>
    <meta name="generator" content="VuePress 1.8.2">
    <link rel="icon" href="/notebook/favicon.ico">
    <script data-ad-client="ca-pub-4147143076931995" async="true" src="/notebook//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
    <meta name="description" content="方便阅读和寻找">
    
    <link rel="preload" href="/notebook/assets/css/0.styles.cee65b40.css" as="style"><link rel="preload" href="/notebook/assets/js/app.400f01da.js" as="script"><link rel="preload" href="/notebook/assets/js/2.ffba27f2.js" as="script"><link rel="preload" href="/notebook/assets/js/133.72f12c19.js" as="script"><link rel="prefetch" href="/notebook/assets/js/10.9da57264.js"><link rel="prefetch" href="/notebook/assets/js/100.8aa79850.js"><link rel="prefetch" href="/notebook/assets/js/101.f8819976.js"><link rel="prefetch" href="/notebook/assets/js/102.7168e4aa.js"><link rel="prefetch" href="/notebook/assets/js/103.e1f049f7.js"><link rel="prefetch" href="/notebook/assets/js/104.0ada8567.js"><link rel="prefetch" href="/notebook/assets/js/105.77e95b95.js"><link rel="prefetch" href="/notebook/assets/js/106.9071202a.js"><link rel="prefetch" href="/notebook/assets/js/107.a0a63241.js"><link rel="prefetch" href="/notebook/assets/js/108.93ccf0bf.js"><link rel="prefetch" href="/notebook/assets/js/109.57caff98.js"><link rel="prefetch" href="/notebook/assets/js/11.d9d769c3.js"><link rel="prefetch" href="/notebook/assets/js/110.6aa16c3f.js"><link rel="prefetch" href="/notebook/assets/js/111.293e18e5.js"><link rel="prefetch" href="/notebook/assets/js/112.7f593e53.js"><link rel="prefetch" href="/notebook/assets/js/113.e03d7fe0.js"><link rel="prefetch" href="/notebook/assets/js/114.4fd73421.js"><link rel="prefetch" href="/notebook/assets/js/115.8dc5910d.js"><link rel="prefetch" href="/notebook/assets/js/116.fc5215b7.js"><link rel="prefetch" href="/notebook/assets/js/117.851bae37.js"><link rel="prefetch" href="/notebook/assets/js/118.03cb2186.js"><link rel="prefetch" href="/notebook/assets/js/119.17f93b7e.js"><link rel="prefetch" href="/notebook/assets/js/12.125d7a59.js"><link rel="prefetch" href="/notebook/assets/js/120.4ea767fb.js"><link rel="prefetch" href="/notebook/assets/js/121.483ad579.js"><link rel="prefetch" href="/notebook/assets/js/122.17d2596f.js"><link rel="prefetch" href="/notebook/assets/js/123.56e20e4e.js"><link rel="prefetch" href="/notebook/assets/js/124.2ec822f9.js"><link rel="prefetch" href="/notebook/assets/js/125.bccb84ed.js"><link rel="prefetch" href="/notebook/assets/js/126.e38a7466.js"><link rel="prefetch" href="/notebook/assets/js/127.43962ebd.js"><link rel="prefetch" href="/notebook/assets/js/128.23f8246b.js"><link rel="prefetch" href="/notebook/assets/js/129.e718e26c.js"><link rel="prefetch" href="/notebook/assets/js/13.f56b83ad.js"><link rel="prefetch" href="/notebook/assets/js/130.a51fe94d.js"><link rel="prefetch" href="/notebook/assets/js/131.64fb54a3.js"><link rel="prefetch" href="/notebook/assets/js/132.badc2a1a.js"><link rel="prefetch" href="/notebook/assets/js/134.0b1b2dc0.js"><link rel="prefetch" href="/notebook/assets/js/135.be2d740c.js"><link rel="prefetch" href="/notebook/assets/js/136.c3dc9ba1.js"><link rel="prefetch" href="/notebook/assets/js/137.784510e4.js"><link rel="prefetch" href="/notebook/assets/js/138.ff844e48.js"><link rel="prefetch" href="/notebook/assets/js/139.1ac43f97.js"><link rel="prefetch" href="/notebook/assets/js/14.3ed225c4.js"><link rel="prefetch" href="/notebook/assets/js/140.4c427bf3.js"><link rel="prefetch" href="/notebook/assets/js/141.459f2cb4.js"><link rel="prefetch" href="/notebook/assets/js/142.e69e2b00.js"><link rel="prefetch" href="/notebook/assets/js/143.b9cd433a.js"><link rel="prefetch" href="/notebook/assets/js/144.c12cb09a.js"><link rel="prefetch" href="/notebook/assets/js/145.43e25cc4.js"><link rel="prefetch" href="/notebook/assets/js/146.0963c075.js"><link rel="prefetch" href="/notebook/assets/js/147.37f2e690.js"><link rel="prefetch" href="/notebook/assets/js/148.631fbe69.js"><link rel="prefetch" href="/notebook/assets/js/149.a22c5490.js"><link rel="prefetch" href="/notebook/assets/js/15.10a06d24.js"><link rel="prefetch" href="/notebook/assets/js/150.e6265d54.js"><link rel="prefetch" href="/notebook/assets/js/151.aefdb9fd.js"><link rel="prefetch" href="/notebook/assets/js/152.a8c722bd.js"><link rel="prefetch" href="/notebook/assets/js/153.ec2b1513.js"><link rel="prefetch" href="/notebook/assets/js/154.4fdc765f.js"><link rel="prefetch" href="/notebook/assets/js/155.de537bd1.js"><link rel="prefetch" href="/notebook/assets/js/156.7f87247c.js"><link rel="prefetch" href="/notebook/assets/js/157.f51afdd1.js"><link rel="prefetch" href="/notebook/assets/js/158.247f3f23.js"><link rel="prefetch" href="/notebook/assets/js/159.2342ec68.js"><link rel="prefetch" href="/notebook/assets/js/16.bc052b7f.js"><link rel="prefetch" href="/notebook/assets/js/160.98e33fe9.js"><link rel="prefetch" href="/notebook/assets/js/161.b8389795.js"><link rel="prefetch" href="/notebook/assets/js/162.5809ad21.js"><link rel="prefetch" href="/notebook/assets/js/163.6d40855f.js"><link rel="prefetch" href="/notebook/assets/js/164.cd5e8c28.js"><link rel="prefetch" href="/notebook/assets/js/165.c409d97c.js"><link rel="prefetch" href="/notebook/assets/js/166.75cd78fe.js"><link rel="prefetch" href="/notebook/assets/js/167.37552374.js"><link rel="prefetch" href="/notebook/assets/js/168.d4ab1d56.js"><link rel="prefetch" href="/notebook/assets/js/169.39f3c518.js"><link rel="prefetch" href="/notebook/assets/js/17.2a8873d5.js"><link rel="prefetch" href="/notebook/assets/js/170.7993242d.js"><link rel="prefetch" href="/notebook/assets/js/171.09f40b60.js"><link rel="prefetch" href="/notebook/assets/js/172.79168981.js"><link rel="prefetch" href="/notebook/assets/js/173.a75cd141.js"><link rel="prefetch" href="/notebook/assets/js/174.bd510afd.js"><link rel="prefetch" href="/notebook/assets/js/175.c3f8ba94.js"><link rel="prefetch" href="/notebook/assets/js/176.dd9cbd79.js"><link rel="prefetch" href="/notebook/assets/js/177.f53090f5.js"><link rel="prefetch" href="/notebook/assets/js/178.bcda53b0.js"><link rel="prefetch" href="/notebook/assets/js/179.2d510aa5.js"><link rel="prefetch" href="/notebook/assets/js/18.2d0a0d6d.js"><link rel="prefetch" href="/notebook/assets/js/180.6928e4f9.js"><link rel="prefetch" href="/notebook/assets/js/181.6cc94652.js"><link rel="prefetch" href="/notebook/assets/js/182.c7d6fde2.js"><link rel="prefetch" href="/notebook/assets/js/183.1a7eaa90.js"><link rel="prefetch" href="/notebook/assets/js/184.5d52b650.js"><link rel="prefetch" href="/notebook/assets/js/185.2f8eddcd.js"><link rel="prefetch" href="/notebook/assets/js/186.2615bcf2.js"><link rel="prefetch" href="/notebook/assets/js/187.ffb3009d.js"><link rel="prefetch" href="/notebook/assets/js/188.deef127e.js"><link rel="prefetch" href="/notebook/assets/js/189.51b1958b.js"><link rel="prefetch" href="/notebook/assets/js/19.482e846f.js"><link rel="prefetch" href="/notebook/assets/js/190.a5e85724.js"><link rel="prefetch" href="/notebook/assets/js/191.fd2dfc70.js"><link rel="prefetch" href="/notebook/assets/js/192.5cb3b141.js"><link rel="prefetch" href="/notebook/assets/js/193.3a6173b0.js"><link rel="prefetch" href="/notebook/assets/js/194.2b937e4b.js"><link rel="prefetch" href="/notebook/assets/js/195.71b1b3e2.js"><link rel="prefetch" href="/notebook/assets/js/196.d8d64ba1.js"><link rel="prefetch" href="/notebook/assets/js/197.fbea3131.js"><link rel="prefetch" href="/notebook/assets/js/198.25e90057.js"><link rel="prefetch" href="/notebook/assets/js/199.5bef52d0.js"><link rel="prefetch" href="/notebook/assets/js/20.3869e9c1.js"><link rel="prefetch" href="/notebook/assets/js/200.839b8484.js"><link rel="prefetch" href="/notebook/assets/js/201.dcc87a43.js"><link rel="prefetch" href="/notebook/assets/js/202.83abe52e.js"><link rel="prefetch" href="/notebook/assets/js/203.c8c886fe.js"><link rel="prefetch" href="/notebook/assets/js/204.7d91a0aa.js"><link rel="prefetch" href="/notebook/assets/js/205.dd934d84.js"><link rel="prefetch" href="/notebook/assets/js/206.ae9d7602.js"><link rel="prefetch" href="/notebook/assets/js/207.f5ac5260.js"><link rel="prefetch" href="/notebook/assets/js/208.203ba066.js"><link rel="prefetch" href="/notebook/assets/js/209.202991be.js"><link rel="prefetch" href="/notebook/assets/js/21.95b2d828.js"><link rel="prefetch" href="/notebook/assets/js/210.3e7c6db0.js"><link rel="prefetch" href="/notebook/assets/js/211.d231f4d5.js"><link rel="prefetch" href="/notebook/assets/js/212.74210f2c.js"><link rel="prefetch" href="/notebook/assets/js/213.ca497e10.js"><link rel="prefetch" href="/notebook/assets/js/214.256f2f8d.js"><link rel="prefetch" href="/notebook/assets/js/215.e5a91195.js"><link rel="prefetch" href="/notebook/assets/js/22.bfedf3cf.js"><link rel="prefetch" href="/notebook/assets/js/23.07416482.js"><link rel="prefetch" href="/notebook/assets/js/24.54aaf5dd.js"><link rel="prefetch" href="/notebook/assets/js/25.5fddfc47.js"><link rel="prefetch" href="/notebook/assets/js/26.3beace9a.js"><link rel="prefetch" href="/notebook/assets/js/27.8166fc8b.js"><link rel="prefetch" href="/notebook/assets/js/28.45eec4fe.js"><link rel="prefetch" href="/notebook/assets/js/29.7d2c15a3.js"><link rel="prefetch" href="/notebook/assets/js/3.58b1a014.js"><link rel="prefetch" href="/notebook/assets/js/30.a7841312.js"><link rel="prefetch" href="/notebook/assets/js/31.dc9675e8.js"><link rel="prefetch" href="/notebook/assets/js/32.93c6c35d.js"><link rel="prefetch" href="/notebook/assets/js/33.9a64b2f6.js"><link rel="prefetch" href="/notebook/assets/js/34.0c220f3c.js"><link rel="prefetch" href="/notebook/assets/js/35.9f407421.js"><link rel="prefetch" href="/notebook/assets/js/36.ee8ac781.js"><link rel="prefetch" href="/notebook/assets/js/37.569079d1.js"><link rel="prefetch" href="/notebook/assets/js/38.56b32d83.js"><link rel="prefetch" href="/notebook/assets/js/39.6ea9c955.js"><link rel="prefetch" href="/notebook/assets/js/4.5042ba18.js"><link rel="prefetch" href="/notebook/assets/js/40.5bdebc85.js"><link rel="prefetch" href="/notebook/assets/js/41.8607bd5a.js"><link rel="prefetch" href="/notebook/assets/js/42.2063b1d0.js"><link rel="prefetch" href="/notebook/assets/js/43.ff59782c.js"><link rel="prefetch" href="/notebook/assets/js/44.c40eaded.js"><link rel="prefetch" href="/notebook/assets/js/45.bc61bb49.js"><link rel="prefetch" href="/notebook/assets/js/46.e9ea5687.js"><link rel="prefetch" href="/notebook/assets/js/47.a9626a0e.js"><link rel="prefetch" href="/notebook/assets/js/48.9bf986fe.js"><link rel="prefetch" href="/notebook/assets/js/49.dd90158a.js"><link rel="prefetch" href="/notebook/assets/js/5.b9679d2a.js"><link rel="prefetch" href="/notebook/assets/js/50.a9546c5a.js"><link rel="prefetch" href="/notebook/assets/js/51.dcc646ec.js"><link rel="prefetch" href="/notebook/assets/js/52.111a35ff.js"><link rel="prefetch" href="/notebook/assets/js/53.19719081.js"><link rel="prefetch" href="/notebook/assets/js/54.543f990e.js"><link rel="prefetch" href="/notebook/assets/js/55.02863756.js"><link rel="prefetch" href="/notebook/assets/js/56.262a1288.js"><link rel="prefetch" href="/notebook/assets/js/57.a80801ee.js"><link rel="prefetch" href="/notebook/assets/js/58.38d623bc.js"><link rel="prefetch" href="/notebook/assets/js/59.07a6b6b6.js"><link rel="prefetch" href="/notebook/assets/js/6.77dfe150.js"><link rel="prefetch" href="/notebook/assets/js/60.df11d23d.js"><link rel="prefetch" href="/notebook/assets/js/61.764a5b2e.js"><link rel="prefetch" href="/notebook/assets/js/62.28916805.js"><link rel="prefetch" href="/notebook/assets/js/63.f54fb2ba.js"><link rel="prefetch" href="/notebook/assets/js/64.73bb9e27.js"><link rel="prefetch" href="/notebook/assets/js/65.8e45d2c8.js"><link rel="prefetch" href="/notebook/assets/js/66.6cabc639.js"><link rel="prefetch" href="/notebook/assets/js/67.61f4e99c.js"><link rel="prefetch" href="/notebook/assets/js/68.fec9c74e.js"><link rel="prefetch" href="/notebook/assets/js/69.b530b731.js"><link rel="prefetch" href="/notebook/assets/js/7.bac04506.js"><link rel="prefetch" href="/notebook/assets/js/70.e2902def.js"><link rel="prefetch" href="/notebook/assets/js/71.09df6e0a.js"><link rel="prefetch" href="/notebook/assets/js/72.5c611ac8.js"><link rel="prefetch" href="/notebook/assets/js/73.66c43b39.js"><link rel="prefetch" href="/notebook/assets/js/74.243e6a2f.js"><link rel="prefetch" href="/notebook/assets/js/75.de524cab.js"><link rel="prefetch" href="/notebook/assets/js/76.750c2fc0.js"><link rel="prefetch" href="/notebook/assets/js/77.fa7ddd5d.js"><link rel="prefetch" href="/notebook/assets/js/78.192816fd.js"><link rel="prefetch" href="/notebook/assets/js/79.a3f3fcd9.js"><link rel="prefetch" href="/notebook/assets/js/8.48754361.js"><link rel="prefetch" href="/notebook/assets/js/80.c3fd6acb.js"><link rel="prefetch" href="/notebook/assets/js/81.7ba4627a.js"><link rel="prefetch" href="/notebook/assets/js/82.e355d704.js"><link rel="prefetch" href="/notebook/assets/js/83.2579aea2.js"><link rel="prefetch" href="/notebook/assets/js/84.1f72cccf.js"><link rel="prefetch" href="/notebook/assets/js/85.7874726d.js"><link rel="prefetch" href="/notebook/assets/js/86.a863f0c3.js"><link rel="prefetch" href="/notebook/assets/js/87.c8c7690e.js"><link rel="prefetch" href="/notebook/assets/js/88.5d7963f9.js"><link rel="prefetch" href="/notebook/assets/js/89.9391f30b.js"><link rel="prefetch" href="/notebook/assets/js/9.c2fb6f2c.js"><link rel="prefetch" href="/notebook/assets/js/90.76bedd2e.js"><link rel="prefetch" href="/notebook/assets/js/91.e345e87a.js"><link rel="prefetch" href="/notebook/assets/js/92.175f428e.js"><link rel="prefetch" href="/notebook/assets/js/93.f45b4417.js"><link rel="prefetch" href="/notebook/assets/js/94.e3f459de.js"><link rel="prefetch" href="/notebook/assets/js/95.1632f845.js"><link rel="prefetch" href="/notebook/assets/js/96.4d0a41d5.js"><link rel="prefetch" href="/notebook/assets/js/97.39bd1831.js"><link rel="prefetch" href="/notebook/assets/js/98.54282751.js"><link rel="prefetch" href="/notebook/assets/js/99.b60593a3.js">
    <link rel="stylesheet" href="/notebook/assets/css/0.styles.cee65b40.css">
  </head>
  <body>
    <div id="app" data-server-rendered="true"><div class="theme-container"><header class="navbar"><div class="sidebar-button"><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" role="img" viewBox="0 0 448 512" class="icon"><path fill="currentColor" d="M436 124H12c-6.627 0-12-5.373-12-12V80c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12z"></path></svg></div> <a href="/notebook/" class="home-link router-link-active"><!----> <span class="site-name">我的笔记</span></a> <div class="links"><div class="search-box"><input aria-label="Search" autocomplete="off" spellcheck="false" value=""> <!----></div> <nav class="nav-links can-hide"><div class="nav-item"><a href="/notebook/guide/" class="nav-link">
  指南
</a></div> <!----></nav></div></header> <div class="sidebar-mask"></div> <aside class="sidebar"><nav class="nav-links"><div class="nav-item"><a href="/notebook/guide/" class="nav-link">
  指南
</a></div> <!----></nav>  <ul class="sidebar-links"><li><section class="sidebar-group depth-0"><p class="sidebar-heading open"><span>Linux</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/notebook/linux/" aria-current="page" class="sidebar-link">Linux 简介</a></li><li><a href="/notebook/linux/Linux 与 Windows 比较.html" class="sidebar-link">Linux 与 Windows 比较</a></li><li><a href="/notebook/linux/关于操作系统的选型.html" class="sidebar-link">关于操作系统的选型</a></li><li><a href="/notebook/linux/安装 Ubuntu Server.html" class="sidebar-link">安装 Ubuntu Server</a></li><li><a href="/notebook/linux/Linux 远程控制管理.html" class="sidebar-link">Linux 远程控制管理</a></li><li><a href="/notebook/linux/Linux 的目录结构.html" class="sidebar-link">Linux 的目录结构</a></li><li><a href="/notebook/linux/Linux 操作文件目录.html" class="sidebar-link">Linux 操作文件目录</a></li><li><a href="/notebook/linux/Linux 系统管理命令.html" class="sidebar-link">Linux 系统管理命令</a></li><li><a href="/notebook/linux/Linux 开关机命令.html" class="sidebar-link">Linux 开关机命令</a></li><li><a href="/notebook/linux/Linux 压缩命令.html" class="sidebar-link">Linux 压缩命令</a></li><li><a href="/notebook/linux/Linux 编辑器.html" class="sidebar-link">Linux 编辑器</a></li><li><a href="/notebook/linux/Linux 软件包管理.html" class="sidebar-link">Linux 软件包管理</a></li><li><a href="/notebook/linux/Linux 用户和组管理.html" class="sidebar-link">Linux 用户和组管理</a></li><li><a href="/notebook/linux/Linux 文件权限管理.html" class="active sidebar-link">Linux 文件权限管理</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header"><a href="/notebook/linux/Linux 文件权限管理.html#查看文件和目录的权限" class="sidebar-link">查看文件和目录的权限</a></li><li class="sidebar-sub-header"><a href="/notebook/linux/Linux 文件权限管理.html#更改操作权限" class="sidebar-link">更改操作权限</a></li><li class="sidebar-sub-header"><a href="/notebook/linux/Linux 文件权限管理.html#数字设定法" class="sidebar-link">数字设定法</a></li></ul></li><li><a href="/notebook/linux/Linux 安装 Java.html" class="sidebar-link">Linux 安装 Java</a></li><li><a href="/notebook/linux/Linux 安装 Tomcat.html" class="sidebar-link">Linux 安装 Tomcat</a></li><li><a href="/notebook/linux/Linux 安装 MySQL.html" class="sidebar-link">Linux 安装 MySQL</a></li><li><a href="/notebook/linux/部署应用到生产环境.html" class="sidebar-link">部署应用到生产环境</a></li><li><a href="/notebook/linux/附：Linux LVM 磁盘扩容.html" class="sidebar-link">附：Linux LVM 磁盘扩容</a></li></ul></section></li></ul> </aside> <main class="page"> <div class="theme-default-content content__default"><h1 id="linux-文件权限管理"><a href="#linux-文件权限管理" class="header-anchor">#</a> Linux 文件权限管理</h1> <h2 id="查看文件和目录的权限"><a href="#查看文件和目录的权限" class="header-anchor">#</a> 查看文件和目录的权限</h2> <p>ls –al<code>使用 ls 不带参数只显示文件名称，通过</code>ls –al` 可以显示文件或者目录的权限信息。</p> <p><code>ls -l 文件名</code> 显示信息包括：文件类型 (<code>d</code> 目录，<code>-</code> 普通文件，<code>l</code> 链接文件)，文件权限，文件的用户，文件的所属组，文件的大小，文件的创建时间，文件的名称</p> <div class="language- extra-class"><pre class="language-text"><code>-rw-r--r-- 1 lusifer lusifer 675 Oct 26 17:20 .profile
</code></pre></div><ul><li><code>-</code>：普通文件</li> <li><code>rw-</code>：说明用户 lusifer 有读写权限，没有运行权限</li> <li><code>r--</code>：表示用户组 lusifer 只有读权限，没有写和运行的权限</li> <li><code>r--</code>：其他用户只有读权限，没有写权限和运行的权限</li></ul> <table><thead><tr><th style="text-align:left;">-rw-r--r--</th> <th style="text-align:left;">1</th> <th style="text-align:left;">lusifer</th> <th style="text-align:left;">lusifer</th> <th style="text-align:left;">675</th> <th style="text-align:left;">Oct 26 17:20</th> <th style="text-align:left;">.profile</th></tr></thead> <tbody><tr><td style="text-align:left;">文档类型及权限</td> <td style="text-align:left;">连接数</td> <td style="text-align:left;">文档所属用户</td> <td style="text-align:left;">文档所属组</td> <td style="text-align:left;">文档大小</td> <td style="text-align:left;">文档最后被修改日期</td> <td style="text-align:left;">文档名称</td></tr></tbody></table> <table><thead><tr><th style="text-align:left;">-</th> <th style="text-align:left;">rw-</th> <th style="text-align:left;">r--</th> <th style="text-align:left;">r--</th></tr></thead> <tbody><tr><td style="text-align:left;">文档类型</td> <td style="text-align:left;">文档所有者权限（user）</td> <td style="text-align:left;">文档所属用户组权限（group）</td> <td style="text-align:left;">其他用户权限（other）</td></tr></tbody></table> <h3 id="文档类型"><a href="#文档类型" class="header-anchor">#</a> 文档类型</h3> <ul><li><code>d</code> 表示目录</li> <li><code>l</code> 表示软连接</li> <li><code>–</code> 表示文件</li> <li><code>c</code> 表示串行端口字符设备文件</li> <li><code>b</code> 表示可供存储的块设备文件</li> <li>余下的字符 3 个字符为一组。<code>r</code> 只读，<code>w</code> 可写，<code>x</code> 可执行，<code>-</code> 表示无此权限</li></ul> <h3 id="连接数"><a href="#连接数" class="header-anchor">#</a> 连接数</h3> <p>指有多少个文件指向同一个索引节点。</p> <h3 id="文档所属用户和所属组"><a href="#文档所属用户和所属组" class="header-anchor">#</a> 文档所属用户和所属组</h3> <p>就是文档属于哪个用户和用户组。文件所属用户和组是可以更改的</p> <h3 id="文档大小"><a href="#文档大小" class="header-anchor">#</a> 文档大小</h3> <p>默认是 bytes</p> <h2 id="更改操作权限"><a href="#更改操作权限" class="header-anchor">#</a> 更改操作权限</h2> <h3 id="chown"><a href="#chown" class="header-anchor">#</a> chown</h3> <p>是 change owner 的意思，主要作用就是改变文件或者目录所有者，所有者包含用户和用户组</p> <div class="language- extra-class"><pre class="language-text"><code>chown [-R] 用户名称 文件或者目录
chown [-R] 用户名称 用户组名称 文件或目录
</code></pre></div><p>-R：进行递归式的权限更改，将目录下的所有文件、子目录更新为指定用户组权限</p> <h3 id="chmod"><a href="#chmod" class="header-anchor">#</a> chmod</h3> <p>改变访问权限</p> <div class="language- extra-class"><pre class="language-text"><code>chmod [who] [+ | - | =] [mode] 文件名
</code></pre></div><h4 id="who"><a href="#who" class="header-anchor">#</a> who</h4> <p>表示操作对象可以是以下字母的一个或者组合</p> <ul><li>u：用户 user</li> <li>g：用户组 group</li> <li>o：表示其他用户</li> <li>a：表示所有用户是系统默认的</li></ul> <h4 id="操作符号"><a href="#操作符号" class="header-anchor">#</a> 操作符号</h4> <ul><li>+：表示添加某个权限</li> <li>-：表示取消某个权限</li> <li>=：赋予给定的权限，取消文档以前的所有权限</li></ul> <h4 id="mode"><a href="#mode" class="header-anchor">#</a> mode</h4> <p>表示可执行的权限，可以是 r、w、x</p> <h4 id="文件名"><a href="#文件名" class="header-anchor">#</a> 文件名</h4> <p>文件名可以使空格分开的文件列表</p> <h4 id="示例"><a href="#示例" class="header-anchor">#</a> 示例</h4> <div class="language-text extra-class"><pre class="language-text"><code>lusifer@UbuntuBase:~$ ls -al test.txt 
-rw-rw-r-- 1 lusifer lusifer 6 Nov  2 21:47 test.txt
lusifer@UbuntuBase:~$ chmod u=rwx,g+r,o+r test.txt 
lusifer@UbuntuBase:~$ ls -al test.txt 
-rwxrw-r-- 1 lusifer lusifer 6 Nov  2 21:47 test.txt
lusifer@UbuntuBase:~$
</code></pre></div><h2 id="数字设定法"><a href="#数字设定法" class="header-anchor">#</a> 数字设定法</h2> <p>数字设定法中数字表示的含义</p> <ul><li>0 表示没有任何权限</li> <li>1 表示有可执行权限 = <code>x</code></li> <li>2 表示有可写权限 = <code>w</code></li> <li>4 表示有可读权限 = <code>r</code></li></ul> <p>也可以用数字来表示权限如 chmod 755 file_name</p> <table><thead><tr><th style="text-align:left;">r w x</th> <th style="text-align:left;">r – x</th> <th style="text-align:left;">r - x</th></tr></thead> <tbody><tr><td style="text-align:left;">4 2 1</td> <td style="text-align:left;">4 - 1</td> <td style="text-align:left;">4 - 1</td></tr> <tr><td style="text-align:left;">user</td> <td style="text-align:left;">group</td> <td style="text-align:left;">others</td></tr></tbody></table> <p>若要 rwx 属性则 4+2+1=7</p> <p>若要 rw- 属性则 4+2=6</p> <p>若要 r-x 属性则 4+1=5</p> <div class="language-text extra-class"><pre class="language-text"><code>lusifer@UbuntuBase:~$ chmod 777 test.txt 
lusifer@UbuntuBase:~$ ls -al test.txt 
-rwxrwxrwx 1 lusifer lusifer 6 Nov  2 21:47 test.txt

lusifer@UbuntuBase:~$ chmod 770 test.txt 
lusifer@UbuntuBase:~$ ls -al test.txt 
-rwxrwx--- 1 lusifer lusifer 6 Nov  2 21:47 test.txt
</code></pre></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">上次更新:</span> <span class="time">2021/4/17 下午5:59:44</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
      ←
      <a href="/notebook/linux/Linux 用户和组管理.html" class="prev">
        Linux 用户和组管理
      </a></span> <span class="next"><a href="/notebook/linux/Linux 安装 Java.html">
        Linux 安装 Java
      </a>
      →
    </span></p></div> </main></div><div class="global-ui"><!----></div></div>
    <script src="/notebook/assets/js/app.400f01da.js" defer></script><script src="/notebook/assets/js/2.ffba27f2.js" defer></script><script src="/notebook/assets/js/133.72f12c19.js" defer></script>
  </body>
</html>
